On the Effects of Core Microstructure on Energy Absorbing Capabilities of Sandwich Panels Intended for Additive Manufacturing

Article Metallurgy & Metallurgical Engineering

Effect of Work-Hardening Mechanisms in Asymmetrically Cyclic-Loaded Austenitic Stainless Steels on Low-Cycle and High-Cycle Fatigue Behavior

Masoud Moshtaghi et al.

Summary: The study shows that in the LCF regime, the contribution of DIM transformation to work hardening improves the fatigue life of type 304SS, making it more durable than type 316SS.

STEEL RESEARCH INTERNATIONAL (2021)

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Article Mechanics

A feasibility study on additive manufactured hybrid metal/composite shock absorbers

V. Acanfora et al.

Summary: The research focuses on the feasibility and effectiveness of novel thin additive manufactured hybrid metal/composite lattice structures as lightweight shock absorbing devices. These hybrid structures combine an additive manufactured metal lattice core for energy absorption with a composite skin/cohesive coating for weight reduction, increased stiffness, and strength of the shock absorber. Extensive numerical analysis demonstrated the effectiveness of the proposed lightweight hybrid configuration compared to traditional shock absorbing panels in terms of mass reduction, mechanical, and energy absorption performances.

COMPOSITE STRUCTURES (2021)

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Article Chemistry, Multidisciplinary

Application of an Additive Manufactured Hybrid Metal/Composite Shock Absorber Panel to a Military Seat Ejection System

Valerio Acanfora et al.

Summary: The study investigated the application of shock absorbing systems for aerospace applications developed through additive manufacturing. The innovative shock absorber concept with a thickness of only 6 mm and composed of a pyramid-shaped lattice core demonstrated the ability to absorb more than 60% of the energy generated during the explosion event. This system increased the total mass of the pilot-seat system by just 0.8%.

APPLIED SCIENCES-BASEL (2021)

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Article Engineering, Civil